A real adorable place to stay in. Customized bunk bends (with good shelves to keep all your stuff within reach). Ideal for a backpacker (and a carry on suit case) but probably not enough space for a really big luggage. The lockers also can't fit a big luggage (but you can deposit them, I assume, with the staff).
The lockers have their own sockets, too, which I found useful. I left my powerbank charging in my locker, while I was out.
Plenty of sockets (USB port and normal socket) to plug in your electronics even in your own bunk.
Close to Khaosan Road but still quiet and peaceful. It's hard to find, though, if you're not actively looking.
I would stay there again when I return to Bangkok.